The whole reason I wanted to get GentooX on my box was to run a proxy script, so I could surf wherever I wanted from work.
Now they cant block any websites, I got the jmarshall CGI Proxy running on my box.

I used to use it as a firewall/NAT box that ran my web/ftp/samba/etc, but it's a bit underpowered and I wanted to get mythtv going so I got a new server and now I run both xboxes as mythtv/xbmc frontends.